The hex color #4c80dd is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#B37F22. The grayscale version is
#8E8E8E. A 20% lighter version of the original color is
#7FB3FF, and Hex
#194DAA is the 20% darker color. If the color is saturated by 10%, you get
#457FE5. If the color is desaturated by 10%, the color
#5381D5 is obtained.